Bell-mute for cornets.



C. G. CONN.

BELL MUTE FOR CORNETS. APPLICATION FILED JULY 9, 1908.

Patented Feb. 9, 1909.

luveutoz Specification of Letters Patent.

Patented Feb. 9, 1909.

Application filed July 9, 1908. Serial No. 442,741.

To all whom it may concern:

Be it known that I, CHARLES G; CONN, a citizen of the United States,residing at Elkhart, in the county of Elkhart and State of Indiana, haveinvented certain new and useful Im rovements in Bell-Mutes for Cornets,of w 'ch the following is a specification.

In the drawing, Figure 1 is a side elevation of a mute, embodying myinvention; 2 1s a longitudinal cross sectional view of the same.

1 represents the mute which is shown as substantially pear shaped. Thesmaller end of the mute is adapted'to enga e the walls of the bell tubeof a-cornet, an to provide a tight joint between the walls of the cometand the mute, I secure a piece 3 of soft leather, felt, or similarmaterial, whereby a strong frictional joint is secured.

4 is a tube 0 en at both ends and of less diameter than the diameter ofthe body of the mute, which extends .throughout the len th i 'of themute and projects as at 5 slightly eyond the enlarged; end of the mutewherein it is secured. heinner end 3 of the tube 4 extends inwardly to apoint adjacent to the inner end of the mute -and in consequence of itsposition, serves to give egress to a certain portion of the sound waveswhich enter the air chamber of the mute.

.. The mute is provided with a series 'of threaded tubular o enings 6near its lar er end, said openings ein provided with at annular seats7.The t readed portions of ring an said openings are above the seats 7. 8is a ring having exterior screw threads and an annular flange 9 adaptedto engage the screw threads in the Wall of the openings.

10 is a piece of membrane or silksecured to the bottom of the ring 8 andadapted to be clamped between-the inner edge of the the seat 7. a

' In order to glve brass wlnd Instruments a 'reedy tone, that they maybe used as subreedy quality of tone can be variedby using dilierentkinds of material for the parts to be inserted in the mute. Forinstance, the use of silk gives a softer quality of tone than the goldbeater skin or membrane. Any material or substance which can be vibratedas the sound waves pass over it will produce a difierent quality of tonethan that of the natural instrument, even when muted.

While I have shown a particular construction of mute, I do not wish tobe limited to the details of construction, inasmuch as I believe that myinvention is of such sco e as to cover the use of one or more suitablematerial inserted in a bell mute for musical instruments for the purposeof changing the quality of tone. 1

What I claim is:

A bell mute comprising a ear-shaped body rovided in the enlarge thereowith threaded tubular openings havin flat annular seats at the innerends of said. tubular openings; and threaded rings ada ted to screw intosaid tubular openings to c amp various materials therein.

CHARLES G. CONN. In presence of two witnesses'- W, J. GBONERT, GnsrnunnS'rnEeo.

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